BlackBerry aid on Tuesday it will not renew its license with T-Mobile U.S. Inc to sell BlackBerry products after the current contract expires on April 25.

BlackBerry said its customers on the T-Mobile network should not see any difference in their service or support. The company will work with T-Mobile to provide customer service to any customer remaining on the T-Mobile U.S. network or to any customer purchasing devices from T-Mobile's existing inventory.

BlackBerry is also working with other carrier partners to provide users with alternatives should they decide to transition to another carrier.

"BlackBerry has had a positive relationship with T-Mobile for many years. Regretfully, at this time, our strategies are not complementary and we must act in the best interest of our BlackBerry customers. We hope to work with T-Mobile again in the future when our business strategies are aligned," said BlackBerry CEO and Executive Chair, John Chen. "We are deeply grateful to our loyal BlackBerry customers and will do everything in our power to provide continued support with your existing carrier or ensure a smooth transition to our other carrier partners."

The relationship between the two companies soured after Blackberry's CEO criticized T-Mobile for sending out emails to some of its customers in February, pitching free iPhone 5s and touting the promotion as a "great offer for BlackBerry customers.